package computer;

/**
 * @Author admin
 * @Date 2019/3/22 10:54
 */
public class Computer {
    String usbs[];

    void add(String usb) {
        for (int i = 0; i <usb.length() ; i++) {

        }
    }

    void powerOn() {

        System.out.println("计算机开机成功");
    }

    void powerOff() {

        System.out.println("计算机关机成功");
    }


}
